"West Side Story" depicts the rivalry and conflict between two street gangs, the Jets and the Sharks, in New York City. Amidst the gang wars, the story explores the love that blossoms between Tony, a former member of the Jets, and Maria, the sister of Bernardo, the leader of the Sharks. The main theme of the play revolves around the struggle to overcome societal divisions, prejudice, and violence, while highlighting the power of love to transcend these barriers.